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<a name="1" href="#1">1</a>   <em class="comment">/*</em>
<a name="2" href="#2">2</a>   <em class="comment"> * Licensed to the Apache Software Foundation (ASF) under one or more</em>
<a name="3" href="#3">3</a>   <em class="comment"> * contributor license agreements.  See the NOTICE file distributed with</em>
<a name="4" href="#4">4</a>   <em class="comment"> * this work for additional information regarding copyright ownership.</em>
<a name="5" href="#5">5</a>   <em class="comment"> * The ASF licenses this file to You under the Apache License, Version 2.0</em>
<a name="6" href="#6">6</a>   <em class="comment"> * (the "License"); you may not use this file except in compliance with</em>
<a name="7" href="#7">7</a>   <em class="comment"> * the License.  You may obtain a copy of the License at</em>
<a name="8" href="#8">8</a>   <em class="comment"> * </em>
<a name="9" href="#9">9</a>   <em class="comment"> *      <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
<a name="10" href="#10">10</a>  <em class="comment"> * </em>
<a name="11" href="#11">11</a>  <em class="comment"> * Unless required by applicable law or agreed to in writing, software</em>
<a name="12" href="#12">12</a>  <em class="comment"> * distributed under the License is distributed on an "AS IS" BASIS,</em>
<a name="13" href="#13">13</a>  <em class="comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</em>
<a name="14" href="#14">14</a>  <em class="comment"> * See the License for the specific language governing permissions and</em>
<a name="15" href="#15">15</a>  <em class="comment"> * limitations under the License.</em>
<a name="16" href="#16">16</a>  <em class="comment"> */</em>
<a name="17" href="#17">17</a>  
<a name="18" href="#18">18</a>  <strong>package</strong> org.apache.log4j;
<a name="19" href="#19">19</a>  
<a name="20" href="#20">20</a>  <strong>import</strong> org.apache.log4j.spi.LoggingEvent;
<a name="21" href="#21">21</a>  <strong>import</strong> org.apache.log4j.spi.LocationInfo;
<a name="22" href="#22">22</a>  <strong>import</strong> org.apache.log4j.helpers.Transform;
<a name="23" href="#23">23</a>  
<a name="24" href="#24">24</a>  <em>/**<em>*</em></em>
<a name="25" href="#25">25</a>  <em> * This layout outputs events in a HTML table.</em>
<a name="26" href="#26">26</a>  <em> *</em>
<a name="27" href="#27">27</a>  <em> * Appenders using this layout should have their encoding</em>
<a name="28" href="#28">28</a>  <em> * set to UTF-8 or UTF-16, otherwise events containing</em>
<a name="29" href="#29">29</a>  <em> * non ASCII characters could result in corrupted</em>
<a name="30" href="#30">30</a>  <em> * log files.</em>
<a name="31" href="#31">31</a>  <em> *</em>
<a name="32" href="#32">32</a>  <em> *  @author Ceki G&amp;uuml;lc&amp;uuml;</em>
<a name="33" href="#33">33</a>  <em> */</em>
<a name="34" href="#34">34</a>  <strong>public</strong> <strong>class</strong> <a href="../../../org/apache/log4j/HTMLLayout.html">HTMLLayout</a> <strong>extends</strong> <a href="../../../org/apache/log4j/Layout.html">Layout</a> {
<a name="35" href="#35">35</a>  
<a name="36" href="#36">36</a>    <strong>protected</strong> <strong>final</strong> <strong>int</strong> BUF_SIZE = 256;
<a name="37" href="#37">37</a>    <strong>protected</strong> <strong>final</strong> <strong>int</strong> MAX_CAPACITY = 1024;
<a name="38" href="#38">38</a>  
<a name="39" href="#39">39</a>    <strong>static</strong> String TRACE_PREFIX = <span class="string">"&lt;br>&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;"</span>;
<a name="40" href="#40">40</a>  
<a name="41" href="#41">41</a>    <em class="comment">// output buffer appended to when format() is invoked</em>
<a name="42" href="#42">42</a>    <strong>private</strong> StringBuffer sbuf = <strong>new</strong> StringBuffer(BUF_SIZE);
<a name="43" href="#43">43</a>  
<a name="44" href="#44">44</a>    <em>/**<em>*</em></em>
<a name="45" href="#45">45</a>  <em>     A string constant used in naming the option for setting the the</em>
<a name="46" href="#46">46</a>  <em>     location information flag.  Current value of this string</em>
<a name="47" href="#47">47</a>  <em>     constant is &lt;b>LocationInfo&lt;/b>.</em>
<a name="48" href="#48">48</a>  
<a name="49" href="#49">49</a>  <em>     &lt;p>Note that all option keys are case sensitive.</em>
<a name="50" href="#50">50</a>  
<a name="51" href="#51">51</a>  <em>     @deprecated Options are now handled using the JavaBeans paradigm.</em>
<a name="52" href="#52">52</a>  <em>     This constant is not longer needed and will be removed in the</em>
<a name="53" href="#53">53</a>  <em>     &lt;em>near&lt;/em> term.</em>
<a name="54" href="#54">54</a>  
<a name="55" href="#55">55</a>  <em>  */</em>
<a name="56" href="#56">56</a>    <strong>public</strong> <strong>static</strong> <strong>final</strong> String LOCATION_INFO_OPTION = <span class="string">"LocationInfo"</span>;
<a name="57" href="#57">57</a>  
<a name="58" href="#58">58</a>    <em>/**<em>*</em></em>
<a name="59" href="#59">59</a>  <em>     A string constant used in naming the option for setting the the</em>
<a name="60" href="#60">60</a>  <em>     HTML document title.  Current value of this string</em>
<a name="61" href="#61">61</a>  <em>     constant is &lt;b>Title&lt;/b>.</em>
<a name="62" href="#62">62</a>  <em>  */</em>
<a name="63" href="#63">63</a>    <strong>public</strong> <strong>static</strong> <strong>final</strong> String TITLE_OPTION = <span class="string">"Title"</span>;
<a name="64" href="#64">64</a>  
<a name="65" href="#65">65</a>    <em class="comment">// Print no location info by default</em>
<a name="66" href="#66">66</a>    <strong>boolean</strong> locationInfo = false;
<a name="67" href="#67">67</a>  
<a name="68" href="#68">68</a>    String title = <span class="string">"Log4J Log Messages"</span>;
<a name="69" href="#69">69</a>  
<a name="70" href="#70">70</a>    <em>/**<em>*</em></em>
<a name="71" href="#71">71</a>  <em>     The &lt;b>LocationInfo&lt;/b> option takes a boolean value. By</em>
<a name="72" href="#72">72</a>  <em>     default, it is set to false which means there will be no location</em>
<a name="73" href="#73">73</a>  <em>     information output by this layout. If the the option is set to</em>
<a name="74" href="#74">74</a>  <em>     true, then the file name and line number of the statement</em>
<a name="75" href="#75">75</a>  <em>     at the origin of the log statement will be output.</em>
<a name="76" href="#76">76</a>  
<a name="77" href="#77">77</a>  <em>     &lt;p>If you are embedding this layout within an {@link</em>
<a name="78" href="#78">78</a>  <em>     org.apache.log4j.net.SMTPAppender} then make sure to set the</em>
<a name="79" href="#79">79</a>  <em>     &lt;b>LocationInfo&lt;/b> option of that appender as well.</em>
<a name="80" href="#80">80</a>  <em>   */</em>
<a name="81" href="#81">81</a>    <strong>public</strong>
<a name="82" href="#82">82</a>    <strong>void</strong> setLocationInfo(<strong>boolean</strong> flag) {
<a name="83" href="#83">83</a>      locationInfo = flag;
<a name="84" href="#84">84</a>    }
<a name="85" href="#85">85</a>  
<a name="86" href="#86">86</a>    <em>/**<em>*</em></em>
<a name="87" href="#87">87</a>  <em>     Returns the current value of the &lt;b>LocationInfo&lt;/b> option.</em>
<a name="88" href="#88">88</a>  <em>   */</em>
<a name="89" href="#89">89</a>    <strong>public</strong>
<a name="90" href="#90">90</a>    <strong>boolean</strong> getLocationInfo() {
<a name="91" href="#91">91</a>      <strong>return</strong> locationInfo;
<a name="92" href="#92">92</a>    }
<a name="93" href="#93">93</a>  
<a name="94" href="#94">94</a>    <em>/**<em>*</em></em>
<a name="95" href="#95">95</a>  <em>    The &lt;b>Title&lt;/b> option takes a String value. This option sets the</em>
<a name="96" href="#96">96</a>  <em>    document title of the generated HTML document.</em>
<a name="97" href="#97">97</a>  
<a name="98" href="#98">98</a>  <em>    &lt;p>Defaults to 'Log4J Log Messages'.</em>
<a name="99" href="#99">99</a>  <em>  */</em>
<a name="100" href="#100">100</a>   <strong>public</strong>
<a name="101" href="#101">101</a>   <strong>void</strong> setTitle(String title) {
<a name="102" href="#102">102</a>     <strong>this</strong>.title = title;
<a name="103" href="#103">103</a>   }
<a name="104" href="#104">104</a> 
<a name="105" href="#105">105</a>   <em>/**<em>*</em></em>
<a name="106" href="#106">106</a> <em>     Returns the current value of the &lt;b>Title&lt;/b> option.</em>
<a name="107" href="#107">107</a> <em>  */</em>
<a name="108" href="#108">108</a>   <strong>public</strong>
<a name="109" href="#109">109</a>   String getTitle() {
<a name="110" href="#110">110</a>     <strong>return</strong> title;
<a name="111" href="#111">111</a>   }
<a name="112" href="#112">112</a> 
<a name="113" href="#113">113</a>  <em>/**<em>*</em></em>
<a name="114" href="#114">114</a> <em>     Returns the content type output by this layout, i.e "text/html".</em>
<a name="115" href="#115">115</a> <em>  */</em>
<a name="116" href="#116">116</a>   <strong>public</strong>
<a name="117" href="#117">117</a>   String getContentType() {
<a name="118" href="#118">118</a>     <strong>return</strong> <span class="string">"text/html"</span>;
<a name="119" href="#119">119</a>   }
<a name="120" href="#120">120</a> 
<a name="121" href="#121">121</a>   <em>/**<em>*</em></em>
<a name="122" href="#122">122</a> <em>     No options to activate.</em>
<a name="123" href="#123">123</a> <em>  */</em>
<a name="124" href="#124">124</a>   <strong>public</strong>
<a name="125" href="#125">125</a>   <strong>void</strong> activateOptions() {
<a name="126" href="#126">126</a>   }
<a name="127" href="#127">127</a> 
<a name="128" href="#128">128</a>   <strong>public</strong>
<a name="129" href="#129">129</a>   String format(<a href="../../../org/apache/log4j/spi/LoggingEvent.html">LoggingEvent</a> event) {
<a name="130" href="#130">130</a> 
<a name="131" href="#131">131</a>     <strong>if</strong>(sbuf.capacity() > MAX_CAPACITY) {
<a name="132" href="#132">132</a>       sbuf = <strong>new</strong> StringBuffer(BUF_SIZE);
<a name="133" href="#133">133</a>     } <strong>else</strong> {
<a name="134" href="#134">134</a>       sbuf.setLength(0);
<a name="135" href="#135">135</a>     }
<a name="136" href="#136">136</a> 
<a name="137" href="#137">137</a>     sbuf.append(Layout.LINE_SEP + <span class="string">"&lt;tr>"</span> + Layout.LINE_SEP);
<a name="138" href="#138">138</a> 
<a name="139" href="#139">139</a>     sbuf.append(<span class="string">"&lt;td>"</span>);
<a name="140" href="#140">140</a>     sbuf.append(event.timeStamp - LoggingEvent.getStartTime());
<a name="141" href="#141">141</a>     sbuf.append(<span class="string">"&lt;/td>"</span> + Layout.LINE_SEP);
<a name="142" href="#142">142</a> 
<a name="143" href="#143">143</a>     String escapedThread = Transform.escapeTags(event.getThreadName());
<a name="144" href="#144">144</a>     sbuf.append(<span class="string">"&lt;td title=\&quot;"</span> + escapedThread + <span class="string">" thread\&quot;>"</span>);
<a name="145" href="#145">145</a>     sbuf.append(escapedThread);
<a name="146" href="#146">146</a>     sbuf.append(<span class="string">"&lt;/td>"</span> + Layout.LINE_SEP);
<a name="147" href="#147">147</a> 
<a name="148" href="#148">148</a>     sbuf.append(<span class="string">"&lt;td title=\&quot;Level\&quot;>"</span>);
<a name="149" href="#149">149</a>     <strong>if</strong> (event.getLevel().equals(Level.DEBUG)) {
<a name="150" href="#150">150</a>       sbuf.append(<span class="string">"&lt;font color=\&quot;#339933\&quot;>"</span>);
<a name="151" href="#151">151</a>       sbuf.append(Transform.escapeTags(String.valueOf(event.getLevel())));
<a name="152" href="#152">152</a>       sbuf.append(<span class="string">"&lt;/font>"</span>);
<a name="153" href="#153">153</a>     }
<a name="154" href="#154">154</a>     <strong>else</strong> <strong>if</strong>(event.getLevel().isGreaterOrEqual(Level.WARN)) {
<a name="155" href="#155">155</a>       sbuf.append(<span class="string">"&lt;font color=\&quot;#993300\&quot;>&lt;strong>"</span>);
<a name="156" href="#156">156</a>       sbuf.append(Transform.escapeTags(String.valueOf(event.getLevel())));
<a name="157" href="#157">157</a>       sbuf.append(<span class="string">"&lt;/strong>&lt;/font>"</span>);
<a name="158" href="#158">158</a>     } <strong>else</strong> {
<a name="159" href="#159">159</a>       sbuf.append(Transform.escapeTags(String.valueOf(event.getLevel())));
<a name="160" href="#160">160</a>     }
<a name="161" href="#161">161</a>     sbuf.append(<span class="string">"&lt;/td>"</span> + Layout.LINE_SEP);
<a name="162" href="#162">162</a> 
<a name="163" href="#163">163</a>     String escapedLogger = Transform.escapeTags(event.getLoggerName());
<a name="164" href="#164">164</a>     sbuf.append(<span class="string">"&lt;td title=\&quot;"</span> + escapedLogger + <span class="string">" category\&quot;>"</span>);
<a name="165" href="#165">165</a>     sbuf.append(escapedLogger);
<a name="166" href="#166">166</a>     sbuf.append(<span class="string">"&lt;/td>"</span> + Layout.LINE_SEP);
<a name="167" href="#167">167</a> 
<a name="168" href="#168">168</a>     <strong>if</strong>(locationInfo) {
<a name="169" href="#169">169</a>       <a href="../../../org/apache/log4j/spi/LocationInfo.html">LocationInfo</a> locInfo = event.getLocationInformation();
<a name="170" href="#170">170</a>       sbuf.append(<span class="string">"&lt;td>"</span>);
<a name="171" href="#171">171</a>       sbuf.append(Transform.escapeTags(locInfo.getFileName()));
<a name="172" href="#172">172</a>       sbuf.append(':');
<a name="173" href="#173">173</a>       sbuf.append(locInfo.getLineNumber());
<a name="174" href="#174">174</a>       sbuf.append(<span class="string">"&lt;/td>"</span> + Layout.LINE_SEP);
<a name="175" href="#175">175</a>     }
<a name="176" href="#176">176</a> 
<a name="177" href="#177">177</a>     sbuf.append(<span class="string">"&lt;td title=\&quot;Message\&quot;>"</span>);
<a name="178" href="#178">178</a>     sbuf.append(Transform.escapeTags(event.getRenderedMessage()));
<a name="179" href="#179">179</a>     sbuf.append(<span class="string">"&lt;/td>"</span> + Layout.LINE_SEP);
<a name="180" href="#180">180</a>     sbuf.append(<span class="string">"&lt;/tr>"</span> + Layout.LINE_SEP);
<a name="181" href="#181">181</a> 
<a name="182" href="#182">182</a>     <strong>if</strong> (event.getNDC() != <strong>null</strong>) {
<a name="183" href="#183">183</a>       sbuf.append(<span class="string">"&lt;tr>&lt;td bgcolor=\&quot;#EEEEEE\&quot; style=\&quot;font-size : xx-small;\&quot; colspan=\&quot;6\&quot; title=\&quot;Nested Diagnostic Context\&quot;>"</span>);
<a name="184" href="#184">184</a>       sbuf.append(<span class="string">"NDC: "</span> + Transform.escapeTags(event.getNDC()));
<a name="185" href="#185">185</a>       sbuf.append(<span class="string">"&lt;/td>&lt;/tr>"</span> + Layout.LINE_SEP);
<a name="186" href="#186">186</a>     }
<a name="187" href="#187">187</a> 
<a name="188" href="#188">188</a>     String[] s = event.getThrowableStrRep();
<a name="189" href="#189">189</a>     <strong>if</strong>(s != <strong>null</strong>) {
<a name="190" href="#190">190</a>       sbuf.append(<span class="string">"&lt;tr>&lt;td bgcolor=\&quot;#993300\&quot; style=\&quot;color:White; font-size : xx-small;\&quot; colspan=\&quot;6\&quot;>"</span>);
<a name="191" href="#191">191</a>       appendThrowableAsHTML(s, sbuf);
<a name="192" href="#192">192</a>       sbuf.append(<span class="string">"&lt;/td>&lt;/tr>"</span> + Layout.LINE_SEP);
<a name="193" href="#193">193</a>     }
<a name="194" href="#194">194</a> 
<a name="195" href="#195">195</a>     <strong>return</strong> sbuf.toString();
<a name="196" href="#196">196</a>   }
<a name="197" href="#197">197</a> 
<a name="198" href="#198">198</a>   <strong>void</strong> appendThrowableAsHTML(String[] s, StringBuffer sbuf) {
<a name="199" href="#199">199</a>     <strong>if</strong>(s != <strong>null</strong>) {
<a name="200" href="#200">200</a>       <strong>int</strong> len = s.length;
<a name="201" href="#201">201</a>       <strong>if</strong>(len == 0)
<a name="202" href="#202">202</a> 	<strong>return</strong>;
<a name="203" href="#203">203</a>       sbuf.append(Transform.escapeTags(s[0]));
<a name="204" href="#204">204</a>       sbuf.append(Layout.LINE_SEP);
<a name="205" href="#205">205</a>       <strong>for</strong>(<strong>int</strong> i = 1; i &lt; len; i++) {
<a name="206" href="#206">206</a> 	sbuf.append(TRACE_PREFIX);
<a name="207" href="#207">207</a> 	sbuf.append(Transform.escapeTags(s[i]));
<a name="208" href="#208">208</a> 	sbuf.append(Layout.LINE_SEP);
<a name="209" href="#209">209</a>       }
<a name="210" href="#210">210</a>     }
<a name="211" href="#211">211</a>   }
<a name="212" href="#212">212</a> 
<a name="213" href="#213">213</a>   <em>/**<em>*</em></em>
<a name="214" href="#214">214</a> <em>     Returns appropriate HTML headers.</em>
<a name="215" href="#215">215</a> <em>  */</em>
<a name="216" href="#216">216</a>   <strong>public</strong>
<a name="217" href="#217">217</a>   String getHeader() {
<a name="218" href="#218">218</a>     StringBuffer sbuf = <strong>new</strong> StringBuffer();
<a name="219" href="#219">219</a>     sbuf.append(<span class="string">"&lt;!DOCTYPE HTML PUBLIC \&quot;-//W3C//DTD HTML 4.01 Transitional//EN\&quot; \&quot;http://www.w3.org/TR/html4/loose.dtd\&quot;>"</span>  + Layout.LINE_SEP);
<a name="220" href="#220">220</a>     sbuf.append(<span class="string">"&lt;html>"</span> + Layout.LINE_SEP);
<a name="221" href="#221">221</a>     sbuf.append(<span class="string">"&lt;head>"</span> + Layout.LINE_SEP);
<a name="222" href="#222">222</a>     sbuf.append(<span class="string">"&lt;title>"</span> + title + <span class="string">"&lt;/title>"</span> + Layout.LINE_SEP);
<a name="223" href="#223">223</a>     sbuf.append(<span class="string">"&lt;style type=\&quot;text/css\&quot;>"</span>  + Layout.LINE_SEP);
<a name="224" href="#224">224</a>     sbuf.append(<span class="string">"&lt;!--"</span>  + Layout.LINE_SEP);
<a name="225" href="#225">225</a>     sbuf.append(<span class="string">"body, table {font-family: arial,sans-serif; font-size: x-small;}"</span> + Layout.LINE_SEP);
<a name="226" href="#226">226</a>     sbuf.append(<span class="string">"th {background: #336699; color: #FFFFFF; text-align: left;}"</span> + Layout.LINE_SEP);
<a name="227" href="#227">227</a>     sbuf.append(<span class="string">"-->"</span> + Layout.LINE_SEP);
<a name="228" href="#228">228</a>     sbuf.append(<span class="string">"&lt;/style>"</span> + Layout.LINE_SEP);
<a name="229" href="#229">229</a>     sbuf.append(<span class="string">"&lt;/head>"</span> + Layout.LINE_SEP);
<a name="230" href="#230">230</a>     sbuf.append(<span class="string">"&lt;body bgcolor=\&quot;#FFFFFF\&quot; topmargin=\&quot;6\&quot; leftmargin=\&quot;6\&quot;>"</span> + Layout.LINE_SEP);
<a name="231" href="#231">231</a>     sbuf.append(<span class="string">"&lt;hr size=\&quot;1\&quot; noshade>"</span> + Layout.LINE_SEP);
<a name="232" href="#232">232</a>     sbuf.append(<span class="string">"Log session start time "</span> + <strong>new</strong> java.util.Date() + <span class="string">"&lt;br>"</span> + Layout.LINE_SEP);
<a name="233" href="#233">233</a>     sbuf.append(<span class="string">"&lt;br>"</span> + Layout.LINE_SEP);
<a name="234" href="#234">234</a>     sbuf.append(<span class="string">"&lt;table cellspacing=\&quot;0\&quot; cellpadding=\&quot;4\&quot; border=\&quot;1\&quot; bordercolor=\&quot;#224466\&quot; width=\&quot;100%\&quot;>"</span> + Layout.LINE_SEP);
<a name="235" href="#235">235</a>     sbuf.append(<span class="string">"&lt;tr>"</span> + Layout.LINE_SEP);
<a name="236" href="#236">236</a>     sbuf.append(<span class="string">"&lt;th>Time&lt;/th>"</span> + Layout.LINE_SEP);
<a name="237" href="#237">237</a>     sbuf.append(<span class="string">"&lt;th>Thread&lt;/th>"</span> + Layout.LINE_SEP);
<a name="238" href="#238">238</a>     sbuf.append(<span class="string">"&lt;th>Level&lt;/th>"</span> + Layout.LINE_SEP);
<a name="239" href="#239">239</a>     sbuf.append(<span class="string">"&lt;th>Category&lt;/th>"</span> + Layout.LINE_SEP);
<a name="240" href="#240">240</a>     <strong>if</strong>(locationInfo) {
<a name="241" href="#241">241</a>       sbuf.append(<span class="string">"&lt;th>File:Line&lt;/th>"</span> + Layout.LINE_SEP);
<a name="242" href="#242">242</a>     }
<a name="243" href="#243">243</a>     sbuf.append(<span class="string">"&lt;th>Message&lt;/th>"</span> + Layout.LINE_SEP);
<a name="244" href="#244">244</a>     sbuf.append(<span class="string">"&lt;/tr>"</span> + Layout.LINE_SEP);
<a name="245" href="#245">245</a>     <strong>return</strong> sbuf.toString();
<a name="246" href="#246">246</a>   }
<a name="247" href="#247">247</a> 
<a name="248" href="#248">248</a>   <em>/**<em>*</em></em>
<a name="249" href="#249">249</a> <em>     Returns the appropriate HTML footers.</em>
<a name="250" href="#250">250</a> <em>  */</em>
<a name="251" href="#251">251</a>   <strong>public</strong>
<a name="252" href="#252">252</a>   String getFooter() {
<a name="253" href="#253">253</a>     StringBuffer sbuf = <strong>new</strong> StringBuffer();
<a name="254" href="#254">254</a>     sbuf.append(<span class="string">"&lt;/table>"</span> + Layout.LINE_SEP);
<a name="255" href="#255">255</a>     sbuf.append(<span class="string">"&lt;br>"</span> + Layout.LINE_SEP);
<a name="256" href="#256">256</a>     sbuf.append(<span class="string">"&lt;/body>&lt;/html>"</span>);
<a name="257" href="#257">257</a>     <strong>return</strong> sbuf.toString();
<a name="258" href="#258">258</a>   }
<a name="259" href="#259">259</a> 
<a name="260" href="#260">260</a>   <em>/**<em>*</em></em>
<a name="261" href="#261">261</a> <em>     The HTML layout handles the throwable contained in logging</em>
<a name="262" href="#262">262</a> <em>     events. Hence, this method return &lt;code>false&lt;/code>.  */</em>
<a name="263" href="#263">263</a>   <strong>public</strong>
<a name="264" href="#264">264</a>   <strong>boolean</strong> ignoresThrowable() {
<a name="265" href="#265">265</a>     <strong>return</strong> false;
<a name="266" href="#266">266</a>   }
<a name="267" href="#267">267</a> }
</pre>
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